ECU MERCEDES-BENZ S550 2007 W221 Manual PDF

676 Technical termsPCMCIA
(P
ersonal C
omputer M
emory C
ard
I
nternational A
ssociation)
Portable memory cards designed to be
inserted into laptop computers to en-
able additional functions.
PIN code
(P
ersonal I
dentification N
umber code)
Your PIN code prevents unauthorized
persons from using your ->GSM mobile
phone. The PIN code is a number
string, which you have to enter when
switching on the telephone.
Poly-V-belt drive
Drives engine components (alternator,
AC compressor, etc.) from the engine.Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing:


Engine


Clutch/torque converter


Transmission


Transfer case


Drive shaft


Differential


Axle shafts/axles
PRE-SAFE
®
(Pre
ventive Occupant Safe
ty System)
Vehicles equipped with PRE-SAFE
®
take preventive measures when the
system senses certain driving dynam-
ics suggesting a possible accident.
Production options weight
(
page 527)Program mode selector switch
Used to switch the automatic transmis-
sion between standard operationS and
comfort operationC.
PSI
(P
ounds per s
quare i
nch)
(
page 527)
PUK
(Personal U
nblocking K
ey)
Must be entered if the wrong ->PIN was
entered three consecutive times.
Recommended tire inflation pressure
(
page 527)
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.

695 Index
Seat belts 55
Children in the vehicle 61
Cleaning 542
Fastening 55, 339
Force limiter 58
Messages in display 605
Proper use of 57, 341
Safety guidelines 47
Telltale 29, 55, 550
Seating capacity 505
Seats 318
adjusting front passenger seat from
driver’s seat 321
Adjustment 318
Drive-dynamic multicontour* in the
front, Adjusting (COMAND) 240
Easy entry/exit feature 328
Folding back and placing upright rear
head restraints 325
Head restraints 324
Lumbar support (COMAND) 237
Memory function 336
Multicontour* in the front, Adjusting
(COMAND) 237
Operating via COMAND 236Setting front passenger seat position
from rear 321
Ventilation* 323
Seats*
Heating 322
Securing cargo
Cargo tie-down hooks 453
Selector lever
Lock 359
Selector lever see Gear selector lever
Self-test
OCS 54
Tele Aid 462
Service and warranty information 14
Service intervals see Maintenance service
indicator
Service life, Tires 501
Service see Maintenance
Service system see FSS (Canada vehicles)
or Maintenance System (U.S. vehicles)
Service, Parts 650
Setting
Cruise control 381
DISTRONIC Plus* time interval 396
Following distance in DISTRONIC
Plus* 396Higher speed in cruise control 383
Higher speed in DISTRONIC
Plus* 393
Lower speed in cruise control 383
Lower speed in DISTRONIC
Plus* 394
Slower speed in cruise control 383
Slower speed in DISTRONIC
Plus* 394
Speed in DISTRONIC Plus* 393
Suspension tuning (ABC*) 403
Temperature (interior) 429
Temperature (rear passenger
compartment) 435
To last stored speed (“Resume” func-
tion) in cruise control 384
To last stored speed in DISTRONIC
Plus* (“Resume” function) 395
Vehicle level control (ABC*) 403
Setting current speed 381
Settings
Calling up DISTRONIC Plus* 389
Control system instrument cluster
menus 254
Resetting trip odometer 246